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Plodinec, Milivoj ; Nerl, Hannah C. ; Farra, Ramzi ; Willinger, Marc G. ; Stotz, Eugen ; Schlögl, Robert ; Lunkenbein, Thomas:
Versatile Homebuilt Gas Feed and Analysis System for Operando TEM of Catalysts at Work.
In: Microscopy and Microanalysis.
Bd. 26
(2020)
Heft 2
.
- S. 220-228.
ISSN 1435-8115
DOI: https://doi.org/10.1017/S143192762000015X
Abstract
Understanding how catalysts work during chemical reactions is crucial when developing efficient catalytic materials. The dynamic processes involved are extremely sensitive to changes in pressure, gas environment and temperature. Hence, there is a need for spatially resolved operando techniques to investigate catalysts under working conditions and over time. The use of dedicated operando techniques with added detection of catalytic conversion presents a unique opportunity to study the mechanisms underlying the catalytic reactions systematically. Herein, we report on the detailed setup and technical capabilities of a modular, homebuilt gas feed system directly coupled to a quadrupole mass spectrometer, which allows for operando transmission electron microscopy (TEM) studies of heterogeneous catalysts. The setup is compatible with conventional, commercially available gas cell TEM holders, making it widely accessible and reproducible by the community. In addition, the operando functionality of the setup was tested using CO oxidation over Pt nanoparticles.
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | WOS:000529849800005 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 13 Jun 2025 07:14 |
| Letzte Änderung: | 13 Jun 2025 07:14 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/93703 |